The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2015
Filed:
Aug. 26, 2011
Joong-hyun Kim, Asan-si, KR;
Sang-hoon Lee, Daejeon, KR;
Min-young Song, Asan-si, KR;
Seung-mo Kim, Yongin-si, KR;
Joong-Hyun Kim, Asan-si, KR;
Sang-Hoon Lee, Daejeon, KR;
Min-Young Song, Asan-si, KR;
Seung-Mo Kim, Yongin-si, KR;
Samsung Display Co., Ltd., , KR;
Abstract
An optical plate and a tiled display apparatus having the optical plate of the present invention include a base substrate and a Fresnel lens having a plurality of Fresnel patterns protruding toward the base substrate from a flat upper surface. The optical plate further comprises an anti-reflection layer, and a high-refraction layer having a refractive index higher than that of the anti-reflection layer. The optical plate comprises an adhesive layer disposed between the Fresnel lens and the base substrate to affix the Fresnel lens to the base substrate, and a spacer disposed between the Fresnel lens and the adhesive layer to maintain a distance between the Fresnel lens and the adhesive layer. The base substrate includes a first portion having a first thickness, a second portion having a second thickness thinner than the first thickness and a connecting portion disposed between the first and second portions.